{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175727",
    "entityType": "User",
    "nonce": "0xf71b7575e77c6df216a3ed36ec8b3bf91977c788f154ae5bce70251791f4ae38",
    "signature": "0x60871ecd157c5c5be3b2a79c719ba6eec13fd495ee6998baeb97085072d2327066c2b4a8922ce510f3363bb5b83358717968d88e73aa0faf94771758666803fd1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}